Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Missi Nadeau Ph.D. P.L.C.

Q: What type of organization is Missi Nadeau Ph.D. P.L.C.?

Missi Nadeau Ph.D. P.L.C. is registered in NPPES as a Clinical Psychologist (its primary provider taxonomy).

Clinical Psychologist in Muskegon, MI · enumerated 2008 · authorized official Missi Nadeau, Sole Proprietor.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1184898280

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Registry record

Entity type Organization (Type 2)

Legal business name Missi Nadeau Ph.D. P.L.C.

Practice address 1735 Peck St, Muskegon, MI, 49441

Phone (231) 722-7751

Enumeration date Apr 18, 2008

Last updated in NPPES Apr 18, 2008

Taxonomy & classification

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 6301007867 (MI) Primary

103TC2200X Clinical Child & Adolescent Psychologist Behavioral Health & Social Service Providers · License 6301007867 (MI) Secondary

103TF0200X Forensic Psychologist Behavioral Health & Social Service Providers · License 6301007867 (MI) Secondary

103TH0004X Health Psychologist Behavioral Health & Social Service Providers · License 6301007867 (MI) Secondary

Authorized official

Name Missi Nadeau

Title Sole Proprietor

Phone (231) 722-7751

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Missi Nadeau Ph.D. P.L.C.?

Missi Nadeau Ph.D. P.L.C. is registered in NPPES as a Clinical Psychologist (its primary provider taxonomy).

Providers at this address

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Greeley Miklashek Psychiatry Physician · Muskegon, MI NPI 1962473082 Robert Lamson Clinical Psychologist · Muskegon, MI NPI 1518934975 Cedarbrook Psychological Services Clinical Social Worker · Muskegon, MI NPI 1760431282 Mary Jo Dempsey PC Clinical Social Worker · Muskegon, MI NPI 1780765271 David Betlejewski Social Worker · Muskegon, MI NPI 1326415738 Community Awareness and Managing Pathways Adult Day Care Clinic/Center · Muskegon, MI NPI 1619580792

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-18.